Adding

LCU.WebApps.Collections.RepoClient/src/services/LocalStorageService.ts

@@ -0,0 +1,33 @@
+import pick from "lodash.pick";
+import {DeepPartial} from "redux";
+import {IAppState} from "../store/Store";
+
+class LocalStorageService {
+
+    private static StorageKey: string = "RepoState";
+
+    public static loadAppSavedState(paths?: string[]): DeepPartial<IAppState> {
+        try {
+            const serializedState = localStorage.getItem(LocalStorageService.StorageKey);
+            if (serializedState === null) {
+                return {};
+            }
+            const parsed = JSON.parse(serializedState);
+            return paths ? pick(parsed, paths) : parsed;
+        } catch (err) {
+            return {};
+        }
+    }
+
+    public static saveAppState(state: IAppState, paths?: string[]) {
+        try {
+            const targetObj = paths ? pick(state, paths) : state;
+            const serializedState = JSON.stringify(targetObj);
+            localStorage.setItem(LocalStorageService.StorageKey, serializedState);
+        } catch {
+            // Not logging because this can happen for normal reasons.
+        }
+    }
+}
+
+export default LocalStorageService;